You don't have to install RST but you can if you want (You might see a slight increase) and you don't have to reinstall your OS because you had your SATA set to AHCI or RAID from the start by looks of it.

Numbers look good....But if your going to test it now and again just do one pass 500MB.Edited by PeterUK - 1/10/11 at 5:36pm